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Specification Errors in Limited Dependent Variable Models

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  • G.S. Maddala
  • Forrest D. Nelson

Abstract

A preliminary investigation of two specification error problems in truncated dependent variable models is reported. It is shown that heteroscedasticity in a tobit model results in biased estimates when the model is misspecified. This differs from the OLS model where estimates are still consistent though inefficient. The second problem examined is aggregation. An appropriate nonlinear least squares regression model is derived for situations when the micro-level model fits a tobit framework but only aggregate data are available.

Suggested Citation

  • G.S. Maddala & Forrest D. Nelson, 1975. "Specification Errors in Limited Dependent Variable Models," NBER Working Papers 0096, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:0096
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    1. Bente Halvorsen, 1996. "Ordering effects in contingent valuation surveys," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 8(4), pages 485-499, December.
    2. Frank, Julieta & Garcia, Philip & Irwin, Scott H., 2008. "To What Surprises Do Hog Futures Markets Respond?," Journal of Agricultural and Applied Economics, Cambridge University Press, vol. 40(01), pages 73-87, April.
    3. John Joseph Wallis, 2000. "American Government Finance in the Long Run: 1790 to 1990," Journal of Economic Perspectives, American Economic Association, vol. 14(1), pages 61-82, Winter.
    4. Michael K. McShane & Larry A. Cox, 2009. "Issuance Decisions and Strategic Focus: The Case of Long-Term Care Insurance," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 76(1), pages 87-108.
    5. Vítor Castro, 2003. "The Impact of Conflicts of Interest on Inflation Stabilization," NIPE Working Papers 8/2003, NIPE - Universidade do Minho.
    6. Leila Baghdadi & Rihab Bellakhal & Marc-Arthur Diaye, 2012. "Do French firms use financial participation to transfer more risk to their workers?," Documents de recherche 12-10, Centre d'Études des Politiques Économiques (EPEE), Université d'Evry Val d'Essonne.
    7. Leila Baghdadi & Rihab Bellakhal & Marc-Arthur Diaye, 2016. "Financial Participation: Does the Risk Transfer Story Hold in France?," British Journal of Industrial Relations, London School of Economics, vol. 54(1), pages 3-29, March.
    8. David Aristei & Luca Pieroni, 2008. "A double-hurdle approach to modelling tobacco consumption in Italy," Applied Economics, Taylor & Francis Journals, vol. 40(19), pages 2463-2476.
    9. Ana Maria Herrera & Pinar Ozbay, 2005. "A Dynamic Model of Central Bank Intervention," Working Papers 0501, Research and Monetary Policy Department, Central Bank of the Republic of Turkey.
    10. Rahma Daly & Marc-Arthur Diaye, 2017. "Do Performance Appraisals Decrease Employees’ Perception of Their Psychosocial Risks?," Documents de recherche 17-04, Centre d'Études des Politiques Économiques (EPEE), Université d'Evry Val d'Essonne.
    11. Erard, Brian, 1997. "Self-selection with measurement errors A microeconometric analysis of the decision to seek tax assistance and its implications for tax compliance," Journal of Econometrics, Elsevier, vol. 81(2), pages 319-356, December.

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